Installing Photoshop CS4 from original Disk onto my new Macbook Pro.  Serial number accepted but now asks for the serial number of a previous version e.g. CS3 which I no longer keep.  How do I resolve ?

Installing Photoshop CS4 from original Disk onto my new Macbook Pro.  Serial number accepted but now asks for the serial number of a previous version e.g. CS3 which I no longer keep.  How do I resolve ?

Tina Hadley did you migrate/transfer your applications over to your new Macintosh?  If so this could cause problems with your serial number being recognized.  Please run the available uninstallers located in Applications/Utilities/Adobe Installers folder.  Once this is done you will also want to run the CC Cleaner Tool.  Details on the use of the CC Cleaner Tool can be found at Use the CC Cleaner Tool to solve installation problems | CC, CS3-CS6 - http://helpx.adobe.com/creative-suite/kb/cs5-cleaner-tool-installation-problems.html.

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